Home / 9,947.40-14,921.10-9,817.80

Finding the Fourth Proportional to 9,947.40, 14,921.10 and 9,817.80

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Solution

The fourth proportional to 9,947.40, 14,921.10 and 9,817.80 is: 14,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947.40 : 14,921.10 = 9,817.80 : x
  2. Step 2: Convert to fraction form
    9,947.40/14,921.10 = 9,817.80/x
  3. Step 3: Cross multiply
    9,947.40x = 14,921.10 × 9,817.80
  4. Step 4: Simplify right side
    9,947.40x = 146,492,375.58
  5. Step 5: Solve for x
    x = 146,492,375.58/9,947.40
  6. Step 6: Final answer
    x = 14,726.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.